Patents by Inventor Stephen R. Polgar

Stephen R. Polgar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10952785
    Abstract: An electrosurgical hand piece device is configured to cut tissue with monopolar RF energy to extract a medical lead submersed in fluid. The device includes an electrode surrounded by an electrically insulating coating that can be exposed from a distal edge of the electrode when power is supplied to the device, thereby focusing the energy at the distal edge and enabling tissue to be more easily and safely cut from around the medical lead while in fluid.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: March 23, 2021
    Assignee: MEDTRONIC ADVANCED ENERGY, LLC
    Inventors: Nathan Zamarripa, Mark M. Guirguis, Jessica Sacks, Brian M. Conley, Stephen R. Polgar
  • Publication number: 20180028258
    Abstract: An electrosurgical hand piece device is configured to cut tissue with monopolar RF energy to extract a medical lead submersed in fluid. The device includes an electrode surrounded by an electrically insulating coating that can be exposed from a distal edge of the electrode when power is supplied to the device, thereby focusing the energy at the distal edge and enabling tissue to be more easily and safely cut from around the medical lead while in fluid.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Nathan ZAMARRIPA, Mark M. GUIRGUIS, Jessica SACKS, Brian M. CONLEY, Stephen R. POLGAR
  • Patent number: 9517129
    Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: December 13, 2016
    Assignee: Cardio Solutions, Inc.
    Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
  • Publication number: 20140207230
    Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.
    Type: Application
    Filed: August 13, 2013
    Publication date: July 24, 2014
    Applicant: CARDIOSOLUTIONS
    Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
  • Patent number: 8506623
    Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured for receipt in the lumen, and a latching mechanism configured for receipt in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 13, 2013
    Assignee: Cardiosolutions, Inc.
    Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
  • Publication number: 20130041459
    Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured for receipt in the lumen, and a latching mechanism configured for receipt in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.
    Type: Application
    Filed: July 10, 2012
    Publication date: February 14, 2013
    Applicant: CARDIOSOLUTIONS
    Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
  • Patent number: 8216302
    Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: July 10, 2012
    Assignee: Cardiosolutions, Inc.
    Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
  • Publication number: 20090240326
    Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.
    Type: Application
    Filed: April 28, 2009
    Publication date: September 24, 2009
    Applicant: CARDIOSOLUTIONS
    Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar